用于微尺度磁共振成像的片上三维微线圈。
On-chip three dimensional microcoils for MRI at the microscale.
机构信息
University of Freiburg, Department of Microsystems Engineering (IMTEK), Laboratory for Microactuators, Georges-Köhler-Allee 102, 79110 Freiburg, Germany.
出版信息
Lab Chip. 2010 Jun 7;10(11):1387-90. doi: 10.1039/c000840k. Epub 2010 Apr 21.
We present for the first time a fully MEMS-integrated technology to manufacture 3D geometrically perfect solenoidal microcoils for microscale MRI applications. We report 25 microm isotropic resolution MR images of a copper sulfate aqueous phantom. These images are acquired using microcoils with 5 windings of insulated 25 microm diameter Au wire and with quality factors as high as 46 at the operating frequency (400 MHz).
我们首次展示了一种完全集成的微机电系统（MEMS）技术，用于制造用于微尺度磁共振成像（MRI）应用的三维几何完美的螺旋微线圈。我们报告了硫酸铜水溶液体模的 25 微米各向同性分辨率的 MRI 图像。这些图像是使用具有 5 匝绝缘 25 微米直径金丝的微线圈和高达 46 的品质因数（在工作频率为 400MHz 时）获得的。
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